苏教版四年级数学下册乘法运算定律练习题精选152Word文件下载.docx
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104
71×
11+29×
1122×
(50+2)501×
14
82×
40+460×
82(32+8)×
2531×
12×
125
三、计算下面各题,并应用乘法交换律进行验算。
94×
5748×
4975×
87×
80=80×
13)=(5×
(7×
5)=7×
(14+93)×
3=14×
____+93×
5+47×
5=(94+____)×
47+3×
13=____〇(____〇____)
56×
(48+12)=____〇____〇____〇____
41×
627×
704
70×
93+30×
9340×
(20+5)902×
12
115×
84+216×
115(28+6)×
587×
60×
7220×
3343×
64
72=72×
(15×
5)=15×
(13+64)×
8=13×
____+64×
11×
11=(11+____)×
14×
39+14×
41=____〇(____〇____)
76×
(28+52)=____〇____〇____〇____
25×
225×
27×
419×
504
52×
99+48×
9926×
(20+4)701×
25
19×
136+164×
19(16+6)×
2589×
6×
4796×
1578×
97
21×
93=93×
(12×
5)=(5×
(13×
5)=13×
(68+75)×
6=68×
____+75×
92×
15+12×
15=(92+____)×
39+12×
51=____〇(____〇____)
96×
(16+84)=____〇____〇____〇____
2125×
37×
221×
404
65×
96+35×
9622×
(60+4)304×
13
172+328×
37(24+2)×
529×
2×
24×
8855×
6952×
52
64×
89=89×
(2×
(19×
5)=19×
(93+29)×
6=93×
____+29×
18+75×
18=(14+____)×
10×
28+10×
32=____〇(____〇____)
22×
(41+39)=____〇____〇____〇____
17×
417×
101
49+88×
4934×
(60+2)104×
11
33+467×
96(12+4)×
79×
4527×
6553×
94
23×
74=74×
11)=(5×
(59+37)×
9=59×
____+37×
4+49×
4=(17+____)×
18+20×
82=____〇(____〇____)
89×
(47+43)=____〇____〇____〇____
15×
6125×
421×
103
112+65×
11245×
(20+2)101×
17
112+288×
23(40+6)×
559×
6931×
3211×
38
69=69×
(10×
21)=(5×
(3×
5)=3×
(11+34)×
5=11×
____+34×
69×
6+88×
6=(69+____)×
25+10×
55=____〇(____〇____)
(39+21)=____〇____〇____〇____
13×
425×
420×
403
66+48×
6632×
(30+4)504×
15
90×
183+317×
90(12+4)×
523×
4×
5
33×
6670×
4854×
45
86=86×
(8×
15)=(5×
(92+74)×
5=92×
____+74×
49×
10+87×
10=(49+____)×
13+19×
87=____〇(____〇____)
72×
(46+24)=____〇____〇____〇____
230×
301
119+36×
11965×
(20+3)703×
22
113×
117+283×
113(26+2)×
2513×
4981×
1721×
87
48×
88=88×
(16×
(21×
5)=21×
(91+28)×
6=91×
____+28×
14+81×
14=(89+____)×
31+6×
49=____〇(____〇____)
(42+58)=____〇____〇____〇____
4125×
29×
813×
603
26×
118+74×
11860×
(60+4)503×
18×
29+471×
18(12+4)×
2582×
2113×
6866×
84
(93+77)×
2=93×
____+77×
9+87×
9=(27+____)×
24+6×
66=____〇(____〇____)
50×
(40+40)=____〇____〇____〇____
612×
204
28+44×
2859×
(30+5)302×
23
110×
188+212×
110(6+8)×
2546×
81×
1294×
9735×
18
21=21×
(89+97)×
4=89×
____+97×
13+28×
13=(12+____)×
50+4×
20=____〇(____〇____)
(14+76)=____〇____〇____〇____
8125×
39×
902
120+61×
12057×
(30+4)804×
108×
140+360×
108(34+4)×
597×
三、